Destructoid

Metaloid are metal versions of the vocaloids created by Kiyastudios. They are very similar to the Haganeloids.

History
Kiyastudios created the Metaloids to represent steel versions of Vocaloids with harsh acts. Unlike the Hagane Vocaloids, they have things like bandages or weapons all around them, and their main theme color scheme is Gray and Cyan. Similarities to the Hagane Vocaloid is that they also wear fishnets and leather and studs.

Metaloid on Fanloid Wiki
The first letter of the Vocaloids' first names and last names are altered. (I'll make this easier to understand. For example: Miku Hatsune, switch M and H and you get Hiku Matsune)
 * Matsune Hiku
 * Makine Seiko
 * Ragamine Lin
 * Howane Yaku
 * Legurine Muka

Trivia

 * Their original name is Destructoid
 * Lin is the only one who does not have her name switched properly.